Home / 13,943.18-20,917.20-4,580.60

Finding the Fourth Proportional to 13,943.18, 20,917.20 and 4,580.60

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Solution

The fourth proportional to 13,943.18, 20,917.20 and 4,580.60 is: 6,871.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.18 : 20,917.20 = 4,580.60 : x
  2. Step 2: Convert to fraction form
    13,943.18/20,917.20 = 4,580.60/x
  3. Step 3: Cross multiply
    13,943.18x = 20,917.20 × 4,580.60
  4. Step 4: Simplify right side
    13,943.18x = 95,813,221.73
  5. Step 5: Solve for x
    x = 95,813,221.73/13,943.18
  6. Step 6: Final answer
    x = 6,871.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.